Megan MansfieldGraduate Student

Research Focus:
Transiting exoplanet atmosphere observations
Hinds 477


B.S. double major in Earth, Atmospheric, and Planetary Sciences and Physics (MIT, 2016)

M.S. in Geophysical Sciences (University of Chicago, 2018)

Research Interests

I use spectroscopic observations of transiting exoplanets to characterize their atmospheres. These observations can reveal the compositions and climates of a set of planets much larger and more diverse than those contained in our own Solar System. My research currently focuses on characterizing hot Jupiters with the Hubble and Spitzer Space Telescopes. As new facilities such as the James Webb Space Telescope allow us to observe smaller planets in more detail, I am interested in using transit spectroscopy to study the habitability of terrestrial exoplanets.

Selected Publications

  • M. Mansfield, E. Schlawin, J. Lustig-Yaeger, A. D. Adams, E. Rauscher, J. Arcangeli, Y. K. Feng, P. Gupta, D. Keating, K. B. Stevenson, and T. G. Beatty. "Eigenspectra: A Framework for Identifying Spectra from 3D Eclipse Mapping." Accepted to Monthly Notices of the Royal Astronomical Society, arXiv:2010.02197 (2020). [ADS]
  • M. Mansfield, J. L. Bean, K. B. Stevenson, T. D. Komacek, T. J. Bell, X. Tan, M. Malik, T. G. Beatty, I. Wong, N. B. Cowan, L. Dang, J.-M. Désert, J. J. Fortney, B. S. Gaudi, D. Keating, E. M.-R. Kempton, L. Kreidberg, M. R. Line, V. Parmentier, K. G. Stassun, M. R. Swain, and R. T. Zellem. "Evidence for H2 Dissociation and Recombination Heat Transport in the Atmosphere of KELT-9b." The Astrophysical Journal Letters, 888, L15 (2020). [ADS]
  • M. Mansfield, E. S. Kite, R. Hu, D. D. B. Koll, M. Malik, J. L. Bean, and E. M.-R. Kempton. "Identifying Atmospheres on Rocky Exoplanets Through Inferred High Albedo." The Astrophysical Journal, 886, 141 (2019). [ADS]
  • M. Mansfield, J. L. Bean, A. Oklopčić, L. Kreidberg, J.-M. Désert, E. M.-R. Kempton, M. R. Line, J. J. Fortney, G. W. Henry, M. Mallonn, K. B. Stevenson, D. Dragomir, R. Allart, and V. Bourrier. "Detection of Helium in the Atmosphere of the Exo-Neptune HAT-P-11b." The Astrophysical Journal Letters, 868, 34 (2018). [ADS]
  • M. Mansfield, J. L. Bean, M. R. Line, V. Parmentier, L. Kreidberg, J.-M. Désert, J. J. Fortney, K. B. Stevenson, J. Arcangeli, and D. Dragomir. "An HST/WFC3 Thermal Emission Spectrum of the Hot Jupiter HAT-P-7b." The Astronomical Journal, 156, 10 (2018). [ADS]
  • M. Mansfield, E. S. Kite, and M. A. Mischna. "Effect of Mars Atmospheric Loss on Snow Melt Potential in a 3.5-Gyr Mars Climate Evolution Model." Journal of Geophysical Research - Planets, 123, 794 (2018). [ADS]